EP4342568A3 - Curved core for variable pleat filter - Google Patents

Curved core for variable pleat filter Download PDF

Info

Publication number
EP4342568A3
EP4342568A3 EP23213581.4A EP23213581A EP4342568A3 EP 4342568 A3 EP4342568 A3 EP 4342568A3 EP 23213581 A EP23213581 A EP 23213581A EP 4342568 A3 EP4342568 A3 EP 4342568A3
Authority
EP
European Patent Office
Prior art keywords
height
extending
core element
filter
radially
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23213581.4A
Other languages
German (de)
French (fr)
Other versions
EP4342568A2 (en
Inventor
Nicholas J. STANLEY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Donaldson Co Inc
Original Assignee
Donaldson Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Donaldson Co Inc filed Critical Donaldson Co Inc
Publication of EP4342568A2 publication Critical patent/EP4342568A2/en
Publication of EP4342568A3 publication Critical patent/EP4342568A3/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/522—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with specific folds, e.g. having different lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated filters
    • B01D2201/122—Pleated filters with pleats of different length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/06—Details of supporting structures for filtering material, e.g. cores

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)

Abstract

A cylindrical filter element including a central longitudinal axis extending along a height of the filter element, a core element extending along at least a portion of the height of the filter element and having a convex curved central portion extending from a first end to a second end to define a width of the core element, wherein the convex curved central portion has a maximum height through the central longitudinal axis that is larger than a height of at least one of the first and second ends, and filter material including a plurality of pleats extending radially from an outer periphery of the core element, wherein an outer cylindrical periphery of the filter material is defined by an outer pleat tip of each of the plurality of radially extending pleats, and wherein an inner pleat tip of each radially extending pleat is adjacent to the core element.
EP23213581.4A 2019-05-29 2020-05-26 Curved core for variable pleat filter Pending EP4342568A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962853935P 2019-05-29 2019-05-29
PCT/US2020/034526 WO2020243080A1 (en) 2019-05-29 2020-05-26 Curved core for variable pleat filter
EP20732426.0A EP3976225B1 (en) 2019-05-29 2020-05-26 Curved core for variable pleat filter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20732426.0A Division EP3976225B1 (en) 2019-05-29 2020-05-26 Curved core for variable pleat filter

Publications (2)

Publication Number Publication Date
EP4342568A2 EP4342568A2 (en) 2024-03-27
EP4342568A3 true EP4342568A3 (en) 2024-04-03

Family

ID=71083765

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20732426.0A Active EP3976225B1 (en) 2019-05-29 2020-05-26 Curved core for variable pleat filter
EP23213581.4A Pending EP4342568A3 (en) 2019-05-29 2020-05-26 Curved core for variable pleat filter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20732426.0A Active EP3976225B1 (en) 2019-05-29 2020-05-26 Curved core for variable pleat filter

Country Status (7)

Country Link
US (1) US20220323896A1 (en)
EP (2) EP3976225B1 (en)
JP (1) JP2022534473A (en)
KR (1) KR20220015434A (en)
CN (1) CN113905800A (en)
BR (1) BR112021023916A2 (en)
WO (1) WO2020243080A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB480810A (en) * 1936-10-29 1938-03-01 James Francois Emile Basset Improvements in fluid purification and filtration devices
DE202009000969U1 (en) * 2009-01-26 2010-07-01 Mann+Hummel Gmbh filter element
CN202538551U (en) * 2012-03-12 2012-11-21 江阴市人和环保设备有限公司 Filter element of air filter
US20130140227A1 (en) * 2010-09-15 2013-06-06 Gerhard Stehle Filter element

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512076A (en) * 1990-07-14 1996-04-30 Gibson; Glenville Filter apparatus
US5730766A (en) * 1996-11-05 1998-03-24 Bha Group, Inc. Non-round unitary filter cartridge
AU2001240618A1 (en) * 2000-02-23 2001-09-03 N V. Bekaert S.A. Pleated filter element
DE102011077715A1 (en) * 2011-06-17 2012-12-20 Mahle International Gmbh Filter element and filter device
WO2015061599A1 (en) * 2013-10-24 2015-04-30 Donaldson Company, Inc. Support structure for pleated filter media and methods
JP5811162B2 (en) * 2013-12-09 2015-11-11 住友電気工業株式会社 Pleated filter, ballast water treatment apparatus using the pleat filter, and ballast water treatment method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB480810A (en) * 1936-10-29 1938-03-01 James Francois Emile Basset Improvements in fluid purification and filtration devices
DE202009000969U1 (en) * 2009-01-26 2010-07-01 Mann+Hummel Gmbh filter element
US20130140227A1 (en) * 2010-09-15 2013-06-06 Gerhard Stehle Filter element
CN202538551U (en) * 2012-03-12 2012-11-21 江阴市人和环保设备有限公司 Filter element of air filter

Also Published As

Publication number Publication date
JP2022534473A (en) 2022-08-01
EP3976225B1 (en) 2023-12-06
CN113905800A (en) 2022-01-07
EP4342568A2 (en) 2024-03-27
EP3976225A1 (en) 2022-04-06
US20220323896A1 (en) 2022-10-13
BR112021023916A2 (en) 2022-01-25
WO2020243080A1 (en) 2020-12-03
KR20220015434A (en) 2022-02-08

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